Silica

8 products

Azomite, organic soil amendment — Soil Supply Co.
Azomite
From $6.40
Volcanic Ash, organic soil amendment — Soil Supply Co.
Volcanic Ash
From $4.80
Rice Hulls, organic mulch — Soil Supply Co.
Rice Hulls
From $6.40
Wollastonite, organic soil amendment — Soil Supply Co.
Wollastonite
From $5.20
Seabird Guano (High P/Si), organic soil amendment — Soil Supply Co.
Seabird Guano (High P/Si)
From $4.80
0.1 - 13.6 - 0.67
Palagonite, organic soil amendment — Soil Supply Co.
Palagonite
From $6.40
Washed Perlite, growing media — Soil Supply Co.
Washed Perlite
From $8.80
Pumice, growing media — Soil Supply Co.
Pumice
From $12.80